Naruto : Saga of Tanya the Kunoichi

Years passed leisurely. Tsuyu noticed the world was heading towards a technological era really fast. The jump in technology was quite astounding. That's what peace and having chakra used as a catalyst does.

Tsuyu visited Sasuke's home since Kouga insisted. It seemed Kouga thought Sasuke was 'cool' especially with the way Sasuke covered one of his eyes with his hair.

"Uncle Sasuke! Show me your eye again!"

"Sure…" Sasuke reluctantly moved his hair away, to reveal the Rinnegan. Kouga's eyes were shining, as if wanting to pluck it out for himself.

"So cool…"

Sakura chuckled as she placed the cut fruits on the table.

"Kouga really takes after Kiba's energy." Sakura commented.

"That's Papa Rinnegan… It's a family secret." Sarada reminded him. 

"I wish I had an eye like mom and uncle…" Kouga looks longingly at Sasuke's Rinnegan, which looked so cool.

"I am sure you have them, kid…" Sasuke flicked Kouga's forehead. Given this guy was Tsuyu's son, and she biologically had Rinnesharingan and Byakugan there's almost no way this kid didn't have a dojutsu.

"... It might be sealed. Sarada opened her Sharingan too early, and that was why she had to wear glasses." Sasuke explained.

"Huh? So opening them early can be bad! I see! Kaa-san must have sealed it then. No wonder I could feel the hidden power inside of my eyes… would it corrode my sight, from seeing the hidden truth…"

Kouga brought his hands towards his face, his eyes visible in between his fingers as he tried to conjure the hidden power.

"Tsuyu, your son is truly… eccentric…" Sasuke said with exasperation. No wonder Boruto called him weird.

"He's just… creative." Tsuyu wasn't sure where he got this from. Or maybe he was just too smart and got bored too easily and had to act with such theatrics to keep himself entertained…

He disliked chess, but he liked Shinobi Fight TCG which in Tsuyu's opinion was more complex than chess at the very high competitive level, with 'meta' and different builds and hundreds of cards with different effects. His brain needed a lot of stimulation to keep himself happy compared to most people. Tsuyu let him be as it didn't affect his overall performance much.

And he wasn't exactly wrong in his imaginations. She knew he really believed she was some God… given the object of worship was in fact herself and Kouga figured it out confidently on his own. He seemed to have overexaggerated it too much though.

"Ah…!" Kouga closed both of his eyes, bringing his face.

"W-what's going on…" Sasuke looked worried. 

"Kouga!" Sarada felt worried as well.

"The power… I can feel it… But I don't want to wear glasses!" Kouga tried to hold the chakra back.

Tsuyu used her Byakugan, surprised that Kouga was not talking nonsense. It seems his attempt this time let him tap into it. Tsuyu could see chakra flowing into his eyes, trying to open it for the first time.

"Let it flow. You will only damage your eyes if you force it to stop."

"Okay Kaa-san…" Kouga stopped struggling, veins popped around his eyes much like Byakugan. His blue eyes shined with blue light as his pupil turned into a slit like that of a demon.

As his eyes opened, it was as if the entire world was made up of just chakra, the other colours turned grey and white as his eye pierced through all falsehood. He could see everyone's chakra colour and characteristics, even the minute traces they left as they breath in and out. Sasuke looked cool and fine on the edges. As for mom…

Kouga gasped. Tsuyu's chakra was like an abyss, unfathomable. Domineering, all mighty.

"So this is the power of God…!" He muttered, looking at Tsuyu with longing.

Sasuke and Sarada had weirded out expressions. What power of God…

"Tell me what you see, Kouga." Tsuyu was calm. It was expected she would have a dojutsu. At the very least Byakugan was guaranteed.

"I could see chakra…! All of them! Kaa-san's chakra is so deep! Like the sea! Uncle Sasuke's is so sharp and powerful!"

Sarada was surprised. Is Kouga's mom so powerful? Dad never talked about her…

"See through the walls?" Tsuyu wanted to assess him.

Kouga nodded. 

"My eyes… it lets me see the truth of this world… all falsehood unveiled…"

Tsuyu dashed quickly and tried to land a flick to his forehead. But Kouga's eyes seemingly were able to catch early on and dodge pre-emptively.

"Woah… I dodged kaa-san's attack…!" Kouga just moved out of the way out like a knee-jerk response.

Sasuke was surprised inwardly. He could see Kouga was not just a regular genius. That was at most a chunin level speed and strike coming from Tsuyu. Though the stance and positioning of his dodge had major flaws but that was natural since he was not trained properly yet.

"Nnnh… the Eye of Truth is consuming me…" Kouga squinted his eyes, the veins around his eyes receded.

"Dizzy…" Kouga mumbled as his expression turned into that of displeasure. The overwhelming amount of stimulation made his brain overworked.

"It's your first time. That was normal. Don't force it if it feels strained. But use it often from now on to get used to them."

"Okay kaa-san."

Tsuyu nodded. 

Kouga had wanted to ask though. He could see it in himself, a dark purple mass inside of him.

Could it be… it was the sealed power of my divinity?

***

Tsuyu glanced at Kouga, her 7 year old son who needlessly trained hard for no reason.

Kaa-san is watching!

Fire Release: Majestic Divine Fire of the Abyss!

Kouga took a deep breath, and with a blow, a blue majestic fireball incinerated the dummy.

Kouga looked at Tsuyu, seeing her reaction. Tsuyu only nodded slightly in appreciation.

"Good. But don't get complacent. There are many people better than you. In front of them such an attack wouldn't even hit."

She said this so he won't get prideful. But she had to admit Kouga was a genius. He even knew how to experiment with molding chakra and create a blue fire that's hotter than standard. She's definitely proud inside, but a part of her never wanted him to become a Shinobi. But since Kouga insisted she didn't block him. She kept a calm expression knowing Kouga wanted her appreciation most and only gave it as a 'treat' like carrot and stick.

"I understand, kaa-san! I will work harder!"

"... You are old enough now. If you really insist on becoming Shinobi, then you have to pass my standard."

Tsuyu made a hand seal of confrontation.

"I will be your opponent."

Kouga gasped. His heart was racing.

Kaa-san is finally teaching me…!

Tsuyu's expression turned colder. If Kouga wanted to survive as a Shinobi, he needed to be strong. She was considering withholding his graduation until he reached 16 really. Due to some changes, some still graduate as early as possible at 12 with parents consent and acceptable performance. Though the academy still accepts part time students that would like to continue learning advanced techniques like genjutsu, medical ninjutsu, basic nature transformation and releases etc. 

"Use your eyes. You need to get used to it."

"Understand! Shiyōgan!" Veins popped around his eyes. His blue iris had a glow in them, with demonic pupils locking onto Tsuyu.

Kouga felt his heart palpitating, because he couldn't see through his mother's strength, that in his eyes, there was no opening.

"Let's start then…"

Flash…!

Kouga's eyes widened, his eyes saw Tsuyu already arrived next to him and delivered a kick. But Kouga quickly crouched down to barely dodge it, and tried to deliver a punch to her. But she simply slapped it away easily, and sent a hard palm right towards his chest sending him flying a few meters back. He landed with a loud thud.

Ouch… that hurts… I could see… but I couldn't react at all…

Kouga held his chest, and the back hurt. But it soon recovered in mere seconds.

Kouga's expression turned more serious. 

Kaa-san wanted me to become strong. I will do my best!

Kouga made a stance, his arms covered in a layer of blue chakra mist.

Raging Fist…!

It was due to Raging Fist, where he overloads his tenketsu. The excess chakra was let out as chakra mist around his arms, giving a cool appearance with a blue glow each time he strikes.

Tsuyu had suspicions that were in fact intentional… but whatever makes him motivated.

"Come then…" 

The two exchanged blow after blow. After tens of rounds, Kouga was seen beaten up, laying on the flat grass.

His body hurt all over, bruised and beaten. But his half Otsutsuki genes let him recover in a matter of minutes.

"Kaa-san… again!" Kouga looked determined. Tsuyu wasn't exactly sure what motivated him really, she already told him peace was a resource to not be wasted, and being a shinobi was choosing to jump into a fire willingly with no effective return considering they already had everything, whether it's status or money. How would she know Kouga intended to help her fight 'evil gods' coming to take her later.

Tsuyu sighed, she was planning to stop, but Kouga's injuries healed too quickly. Even she wonder if this was considered child abuse. 

"Since you asked for it."

With time and time again Kouga beaten up and got back up, Tsuyu slowly let go of her limiter little by little, testing how much pain Kouga could take.

With a knee to his side, Kouga groaned in pain and was sent flying and smashed onto a tree until it cracked.

"Cough… nnh…" His eyes teary from the pain.

Did I overdo it…

Tsuyu wondered. But she saw Kouga standing shakily. His body healed back again. Now that she thought about it, Reibi too had an effect in healing his physical body.

"Tsu-chan… what are you doing…" 

Tsuyu already noticed the presence watching from a distance. He turned to Naruto, already knowing what he would say.

"He wanted to become a shinobi. He had to pass my standard. Don't interfere."

Naruto wanted to say something, looking at Kouga's teary eyes. Even his heart felt pain inside.

"He's just a child… he's not even in the academy yet…"

"If you want to say nonsense here, teach your own child. Not mine." Her tone became colder.

Naruto seemed reluctant to leave. He knew how tough Tsuyu can be in her training. He couldn't help but feel worried.

"Uncle… cough… I am fine. I want to become strong like mom…" Kouga stood up again.

"..." Naruto looked at Kouga, feeling bad inside. He thought Kouga needed Tsuyu's appreciation and acknowledgement, and probably felt she was cold that was why he was trying hard. He knew Tsuyu wasn't exactly the best at expressing emotions and affection.

"Tsu-chan… just…"

Tsuyu glared at him coldly, as if daring him to say another word.

"You might hurt your son… Tsu-chan."

"If he's hurt he will stop. I never liked him choosing to be a shinobi to begin with."

"..." Naruto couldn't refute. Reluctantly, he had to leave. Naruto already decided to check up on Kouga at times.

Contrary to Naruto's thoughts, Kouga already had expectations set on his mother. Since his mom was 'God', her way of expressing emotions were different and even a nod = she was happy. 

And fighting with his mother made them feel closer. As if every beating was to make him stronger, that she cared in her own way. Besides, his dad was the one who's really doting. Though he felt Kiba was more annoying for treating him like a baby at times. It's embarrassing!

After rounds of exchanges, Kouga's body was finally unable to keep up. He was drenched in sweat, but he was happy inwardly.

"Let's have lunch. We will eat fresh games. Come."

"Mm… okay, kaa-san…" Kouga walked with Tsuyu into the spatial crack back into their home.

"Hey, welcome home! I got the chickens." Kiba grinned happily, welcoming them outdoors where a new chicken coop was already built, filled with fresh lives.

Cluck! Cluck!

The living chicken in Kiba's hand struggles.

"Come, this time you will learn how to kill… an animal."

"Yes kaa-san!"

In the backyard… Kouga beheaded the chicken entirely from using too much strength. There weren't many emotions in his eyes, feeling the chicken in his hand struggling and moving even after its head was gone. His only feelings were that the blood was nasty and dirty. And he didn't like the smell either.

Tsuyu showed him how to process the chicken, from a living chicken, draining its blood, removing its feathers, and chopping it up to pieces and turning it into food.

"I expect you to kill a person one day, are you really willing to become a shinobi knowing this?"

"... Yes. I am willing. Our fate led to inevitable bloodshed… the evil Gods would show no mercy."

Tsuyu nodded, already used to his wordings like it was normal.

"But if you cannot do it, just quit. You can become many other things other than a shinobi, each occupation has its own value. I personally never wanted to become one, but was forced to become one. You are different."

"... I won't run away from my fate, kaa-san!"

Tsuyu sighed, but then her eyes firmed. She planned to discourage him mostly, expecting him to fail really.

"You have 1 month. Take that time to get used to killing animals each day for our meals. In time… you will take your first human life. And many more. I would not accept a soft hearted shinobi."

With ROOT being alive, she had taken over them after Danzo's passing so she could get living human subjects easily.

"Yes kaa-san. I understand." Kouga's mentality shifted as he prepared for the 1 month deadline.

***